Fleeced-rib-knitting machine.



PATENTED APR. 9, 1907.

R. W. SCOTT. FLEEGED RIB KNITTING MACHINE.

. APPLICATION FILED mm. s, 1906.

No; 349,701. PATENTED APR. 9, 1907.

I n. WJSGOTT. I FLEEGBD RIB KNITTING MACHINE.

, APPLIOATIOK 111.5111. 8. 1905 a BKEHTH-HHBET z. r

no 849,701. I 'PATENTED APR. 9, 1907.

' R. W. SCOTT.

FLEBOED .RIB KNITTING MACHINE.

APPLICATION FILED MAR.8, 1905.

' 6 SHEETS- 811133! 3.

:m 849,701. PA'TBNTED APR. 9, 1907.

I R. w. SCOTT. 4

PLEECED RIB KNITTING MACHINE.

APPLICATION FILED MAB. a. 1905.

s SHEETS-SHEET 4. V

No. 849701. PATENTED APR. 9, 1907.

r R. w. SCOTT.

ILEECED RIB KNITTING MACHINE.

Arnmou on FILED MAE. a, 1905..

' s sHnnTs-snnm 5.

No. 949.701; PATENTED APR. 9', 1907.

'R. W. 300m FLEEGBD RIB KNITTING MACHINE ROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- UNITED STATES PATENT OFFICE.

HALF TO LOUIS i l). VVILLTAMS, OF OGONTZ, PENNSYLVANIA.

FLEECED-RlB-KNITTING MACHINE.

To all whom it may concern.-

Be it known-that-I ROBERT W. Soon, a

citizen of the United States, residing in Philadel hia, Pennsylvania, have .invented fabric is composed.

' certain m'provements in FleecedRib-Knitin section,- of a. rib-knitting machine constructed in accordance with my present invention. Fig. 2 is a sectional plan view of the machine on the line a a, Fig. 1.' Fig. 3 is a plan or topview of a portion ofthe machine.

4 is a view showing one half ofthe cylins der-cam box of the machine developed in a flat plane. Fig. 5 is a similar view of the other half of the cam-box. Fig. 6 is a plan view of the yarn-guides of the machine and of the cams of the dial-canrplate. Fig. 7 is a plan view of the fleecing-yarn guide of the machine. Fig. 8 is a sectional view illustrating a modification of the invention. Figs. Qand 10 are sectional views .of other types of knitting-machines embodying my invention. Figs. 11 to 16,inclusive, are diagrams illustrating the operation of the machine; Fig. 17 is a view illustrating a modified construction of certain of the dial-cams; and Fig. 18 is an exaggerated view of a piece of rib-knitted fabric. showing various ways of combining a fleecing-yarn therewithin accordance with my invention.

Referring :iirst to the machine shown in Figs. 1 to.7, it willbe noted that so far as concerns the general construction of the rib knitting machine my invention involves no material departure from ordinary practice exce t in the means employed for maintaining t 1e needle dial in stationary position and for iln arting rotating movement to the dialcam p ate, the invent-ion comprising mainly the combination with the elements 'of a rib knitting machine, of a fleecing-yarn guide, 'a-

tying-yarn guide, and means for causing the tying-yarn to engage ,With the fleecing-yarn and. with .the wales of the ribbed fabric as the .latteij is being knit.

Specification of Letters Patent.

Application filed March 8, 1905.

the spindle 22,

satented Apr 9, 1902*.

Serial No. Zi9,033.

In Fig. 1' of the drawings, 1 represents part 1 of the fixed table or bed of the machine, which constitutes a bearing for a rotating gear-wheel 2, the latter'carrying the cylindercam box 3 and having also mounted upon it by means of posts 4 the arch 5, as'is usual in 4; c .machines of this type.

Secured to the 53:04 l.

bed-plate is the needle-cylinder 6, which vertical grooves'for the guidance of the c der-needles 7, the latter being caused to rcciprocate vertically by means of earns so '21, incluslve, (shown in'F gs. 1 and 5,

1 and operating in the manner hereinafter set forth. Mounted 1n the hub of the arch .3 is

a tubular vertical spindle 22, to the lower end 34, which bears against one of the posts 4 of the arch, so that as the-latter rotates with the drive wheel 2 corresponding rotation will be mparted to the dial-cam plate 32. Adjust-- ment of the dial-cam plate and its around the axis of the spindle 22 is permitted or effected by turning the screw 34 in one direction or the other, the; hub of the arm 33 being split and provided with a clamping bolt 35, whereby it is secured to the hub of the cam-plate, as shown in Figs. l and 2, rise of the dial-earn plate on the spindle 22 being prevented by means of a collar 36, located above the hub of the arm 33 and secured lo the spindle by means of a set-screw 3?.

Owing to the use of the rotating int yarn-guide and stitchedel'lector. herein referred to, I cannot lock the need le-dial 24-. to

.the needle-cylinder 5 by means of engaging lugs on the inner side of the cylinder endure der side of the dial, as usual. llence I am. compelled to resort to other means'for prr-w'enting rotation of the dual. Various means for RC- complishing tlus result may be errplcyed;

but in the present instance I have prm'idal -annular racks on the needle-cylinder and on. these racks engaging 1w; tn

' spur-wheels carried by a shaft 'v-hich is rec mounted in a bearing secured to and rotating with the arch. structure of the machine. The annular rack on the needle-cylinder is represented at 40, and the annular rack carried by the spindle 22 is represented at 11, a spurwheel 42 at thelower end of a vertical shaft 43 engaging with the rack 40 and a similar spurwheel 44 at the upper end of said shaft engaging with the rack 41 The shaft 43 is carried by a bearing 4-5 on a bracket 46, which is secured tonne of the posts 4, r

shown in Figs-1, 2, and. 3. Hence sai bracket is carried aroundby the rotating arch structure the-pinions 42 and 41.4 are caused to rotate uniformly, and there can he no movement of the rack 11. independently of the rack 40 on the needle-cylinder, and as the latter is stationary it follows that the rack 41 and the dial 2 1-controlled thereby must also remain stationary.

Passing through the tubular spindle 22 is tubular yarnguide 4.7, provided at its upper end. with a }')rojecting arm 48, which has a split hub -19, with suitable clamp-screw and nut, whereby it is secured to the yarn-guide,

this hub'resting upon the upper end of the sipindle 22, and thus serving for the proper support of the yarn-guide in respect to said spindle. Secured to the projecting lower end of the yarn-guide 4'7 is a bent arm 50, whose outer end constitutes a combined yarn-guide and stitch-deflector, said outer end having a cam-surface 51, Fig. '7, and at the rear of the same a 'projeeting linger 52, the outer face of which is grooved, as at 53, to form a yarn guiding channel which communicates at its forward end. with a yarn-passage 54, extending through the guide, said yarn-passage being in line with a notch in the vertical portion of the arm 50, so that a'yarupassi'ng through the tubular yarn-guide 4 7- can be threaded through the notch 55, passage 54, and. grooved channel. 53, so to be delivered from the end of the projecting finger 52 of the guide. i

The yarn-guide 50 operates on the inside of the knitted tube, depending froin the cylinder and dial-needles of the machine, and the camface 51 of said guide is looatedclose to the under side of the dialv 24 and projects so far beyond the periphery of said dial and so far also beyond the cylinder-needles 7 that if said guide is caused to rotate with the dialcam plate it will deflect the stitches carried by the dial-needles to such an extent that the yarn fed by it can be delivered behind said stitches and in front of the cylirider-needles 7 the latter rising behind the projecting linger 52 of the guide, so that said yarn can be properly laid in. their hooks.

Rotative movement ofihc tubular yarnguide 47 in consonance with the dial-can't plate 32 and cylinder 3 is effected by contact of a screw 56 at the outer end of the arm 48 with a post 57, which is secured to and procams which coo' 'ierate with two knitting-yarn guides, so to form two courses of stitches on each rotation of the. machine, although it should be understood that my invention is equally applicable to a single-feed machine or to a machine having more than two feeds with their accompanying sets of cams.

In Fig. 6 the two yarn-guides are represented, respectively, a't60 and 61, said yarnguides being suitably mounted uponthe dialcam plate and rotating therewith inthe direc tion of the arrow, Fig. 6, the knitting yarn being fed through an eye 62, in each yarnguide. At 26, 27,, and 28 are represented, respectively, the projecting-cam, the guardcam, and the retracting-cam of the dial-cam plate, which cooperate with the knitting-yarn guide 60, and 29, 30, and 31. represent, respectively, the projecting-earn, the guardeam, and the retracting-cam of the diaLcam plate, which cooperate with the knitting.

yarn guide 61. The projecting-cam structure, however, is formed so as to present a cam 63 considerably in advance of the cam 26, so as to provide for a projection of the dial-needles so far in advance of the knitting-iioint as to provide for the proper aotion'of the yarnguide and stitch-deflector 50, whereby the "stitches are pushed outward upon the dialneedles in order .to permit of the laying of the fleecing yarn behind them by said guide. The cam 63, however, is not essential, as the guide "50 may, if desired, push out the, dialneedles as well as the stitches.

One half of the cylinder-cam box has the usual l mittingrcams, com risinga projectingcam 14 andan adjustable depressor-cam 15 for operating the cylinder-needles to receive the knitting-yarn from the guide 60, and the other'hal'f of the cylinder has knitting-can'is comprising a lift-cam 20 and an adjustable depressoncam 2] for operating the cylinderncedles to receive the knitting-yarn from the guide 61, a lift and rest cam 16 and a guardcam 17 following the cams 14 and 15, and a lift and rest cam 18 and a guard-cam 19 following the cams 20 and 21. In addition to these two sets of knitting-cams there are on the cylinder-cam box a 'levelingca1n 9 and two sets of cams 10, .11, 12,. and 13, the earns 10 and '12 being lift-cams and the cams 1.1 and 13 being depressor-cams.

The lateral relation of the yarn-guides 54,

64, and 6'2 in res 'iect to the cams of the cam- IOQ - 51 of said guide, the draft upon the fabric preventing the cylinder-stitches preceding cylinder is shown by dotted lines in Fig. 4, although this does not properly show their vertical relation, as in the machine the said guides are farther above thecylinder-cams. The relation of the guides 54, 64, and. 62 to the dialcan1s is shown in Fig. 6.

The internal yarn-guide of the machine is intended for the control of the fleecingyarn m, which is fed through the tubular yarn-guide 437, an the cam 10 of the cylinder-carn box raises the cylindenneedles behind and close to the" end of the finger 52 of said internal yarn-guide 50, so as to permit of the placing ofthe fieecing-yarn in the hooks of said. needles after it has been placed behind the dial-needle stitches, which have been projected by the action of the cam-face those in the hooks of the cylinder-needles from being pulled over said hooks when the dial-stitches arethus projected. (See Fig. 1 1.)

The lift of the cam 10 is not sniiicient to slip the stitches on the cylinder-needles back of their latches, (see Fig. 12,) and after the fleecing-yarn has been-laid in the hooks'of these needles the latter are depressed by'the action of the cam 11, (see Fig. 13,) so as to draw loops of fleecing-yarnof the required length,which rest between adjoining cylinder-needlcs against the inside' of the sinkerwales between said cylinder-needles and the intervening dial-needle, after which the'cylinder-needles are raised to the clearing-point by the cam 12-th at is to say, they are raised to such a point that both the knittingstitch and'the loop of fleecing-yarn will be slipped back of the latches of the needles. (See Fig. 14.) 1

Wherntheneedles are raised by the cam 12 they receive a fine tying-yarn'y, which is fed to them through an eye 64. of the yarn- *guide 60, and the needles are then depressed (See Fig. 15.),

bythe action of the cam 13. This cam, however, is shorter than thenormal depressing-cams 11 and 15, so thatit will not cast from the cylinder-needles the knitting-stitches thereon; but the loops of fleecing-yarn occupy a higher position upon the shanks of the needles than do the knit-' ting-stitches, because said fleecing-yarn is engaged by the dial'needle stitches. The

partial depression of the cylinder-needles by the,cam 13 therefore is suiiicient' to clear from said needles the loops of fleecing-yarn stitch and the-Qtying-loop will be slipped back (See Fig.

oi the latches, shown in Fig. 16, and when the needles are depressed by-the cam 15 will. be cast from the needles over the new loop of knitting-yarn. I

When the dial-cams are constructed in the manner shown in Fig. 6, the tying-yarn 'y will also be fed to the dialnee dles, since the latter remain in the projected position to which they have been adjusted by the cam 63 in or der to permit of the pushing out of the stitches by the deflector 51. Hence loops of the tying-yarn will be drawn in both the cylinder-needle wales and in the. dialneedle Wales of the fabric, which is. produced upon the machine, as shown at c in Fig. 18, in which a represents the cylinder-needle wales and b the dialneedle wales; but if this is not de sired the dial-needles can by a proper conformationof' the cams of the dial-cam plate-as shrwm, tor-instance, in Fig. .17be re traeted at the point where the tying-yarn is being fedto the cylinder-needles, the result in this case being as shown at d in Fig. 18.

As shown, I have provided for the introduction'of the fleecing-yarn and of the tyingyarn for engaging the same in alternate courses only of the knitted web the cam 63,

shown in advance of the. carn29 in Fig. 6, serving merely toeffect a unnecessary partial projection of the dialneedles; but it will'be'evident that the fleec-.

ing and tying yarns may be used in connection with each course, if desired, by providing a proper equipment of cams 9 to 13, inelusive, in advance of the knitting-cams 20 and 21 and by duplicating the guide'50 and providing the yarn-guide 61 with a tyingyarn eye 64, and it will also be evident that by separating the cylinder-needles, either in thep ane of their reciprocation or in a plane transverse thereto, the fleecing-yarn can be preliminary but fed in front of some of. said needles and bebind the others,- so that it-will not be tied into each cylinder-needlewale of the fabric.-as

and stitch-deflector may be arranged adjacent to the inner side of the'needle-cylinder 6 instead of to the-under side of the needledial,

there being a corresponding transposition in I the movements of the cylinder and dial needles, so that the fleecing-yarn will be laid underneath the cylinder-needle stitches and on top of the dial-needles, asshowniriFig. 8. In this case the central tubular yarn= uide 47- IIVS will not be necessary, since although t e fleecing-yarn guide is inside of the cylinder ofthe machine and inside of the needle angleliit'is not inside of the tubular web. depending from the needles.

In the machine shown in itheidial cylinder and dial are stationary and thg ,cyl-

inder-carn box and dial-cam plate rotate; but my invention is of course equally applicable to a machine in which the reverse is true.

It is not always necessary .in carrying out my invention to employ an internal fleecingyarn guide and stitch-deflector. For instance, vl may, as shown in Fig. 9, employ an external. fleecingyarn guide 50 of a charactor somewhat similar to that shown and described in my Letters Patent No. 577,789, dated February 23, 1897, this yarn-guide acting upon the butts of the dial-needles and serving to project them into an annular needle-dial 24;, located outside of' the main *needlealial 24 and suitably mounted upon the needle-cylinder 6. The fleecing-yarn guide 50 will, however, be modified as compared with thatv of the machine of the previous patent, so as to'project the dial-needles to a greater extent than before in order to permit said fleecing-yarn guide to lay its yarn in the hooks of thecylindermeedles, the machine being also equipped with a tying-yarn guide and the cylinder-cam box being provided with cams 9 to 13, as described, fdr operating the cylinder-needles to receive and draw loops of the fleecing and tying yarns. My invention may even be embodied in a machine in which reciprocating jacks are employed in connection with an internal fleecing-yarn guide and a tying-yarn guide. Such a machine is illustrated in Fig; 10, in which re presents aseries of jacks mounted in a diagonal jack-bed 71, which is secured to the under sideof the dial 24, these jacks being reciprocated by cams carried by a rotating and diagonally-disposed cam-ring 72, which is secured to the lower portion of the tubular yarn-guide 4:7 and rotates with the same. Mounted upon. and rotating with the cam.- ring 72 are a pair of yarn-guides 73 and 74, the guide 73 controlling-a fleecing-yarn and the guide 7 4 controlling the tyin -yar n, both. of which arns are fed into t 1e machine through t 1e tubular yarn guide 47., For convenience I have shown these yarnguides in the drawings as loc'ated at a point diametrically opposite to'tlie point atwhich the jacks 70 are projected; but in practice the guides will be located close to the point of projection of the jacks. Each jack has in its under side a notch 75 for en' gaging the tying-yarn, so that when the jack is projected a loop of said tying-yarn will be applied to the 'cyli'ndenneedle of the machine alongside of which the ack works, the. j acks being operated in connection with each cylirulcr-needle, if desired, or only with every second, third, or other alternate needle, or some of the jacks being operated in connection with some of the needles in knitting one course and the alternate jacks being operativc in connection with the alternate cylinder-needles in knitting the next course, as in the patent of D. C Bellis, No. 561,555), June 9 1896. Each jack has a beveled outer end, and the fleecin -yarn guide 7 3 is so disposed as to lay the ileecing-yarn in front of saidbeveled ends of the j acks when the latter are in the retracted position, shown at the right-hand side of Fig. 10. The ends of a certain number of acks-say one-half of the same---are beveled in one direction, while the ends of the alternating jacks are beveled in the opposite direction. Hence when the jacks are projected the fleecing-yarn will be directed on top ofcertain of the jacks and beneath the others, so as to lie alternately above 2. The combination of the two sets of,

needles, knitting-cams and' knitting-yarn guide or guides of a rib-knitting machine, with meansfor. laying a fleecing-yarn behind the stitches carried by one set of needles, and delivering said yarn to needles of the other set, a tying-yarn. guide, and means for causing said tying-yarn to engage with said fleecing-yarn, and withwales of the ribbed fabric, substantially as specified.-

3. The combination of the two sets of needles, knittingecams, and knitting yarn guide or guides of ar1b-knitting machine,- With means operating on the inside of the machine for laying a fleecingyarn behindthe stitches carried by one set of needles and delivering said fleecing-yarn to needles of the other set, a tying-yarnguide and means for causing said tying-yarn to engage with said fleecing-yarn and, also with wales of the ribbed fabric, substantially as specified.

.4. The combinationol the two sets of needles, knitting cams and knitting yarn guide or guides of a rib-knitting machine, with means for displacing from their normal position the stitches carried by one set of needles, a guide for laying a fleecing-yarn behind said stichesand delivering it to needles of the other set,. a ,tyingyarn guide and. means for causing said, tying-yarn to engage with said fleecing-yarn and also with .wales of the ribbed Fabric, substantially as specified.

5. T he combination of the two sets of needles, knitting-cams, and knitting-yarn guide or guides of a rib-knitting machine, with means acting directly upon the stitches 'fleecin -yarn and de iyering it to needlesof the other set, a tying-yarn guide and means for causing said upon one set of needles to displace them from their normal osition, a guide for laying a ehind said deflected Stitches tying-yarn to engage with said fleecing-yarn and also with wales of the ribbed fabric, substantially as specified.

6. The combination of the two sets of needles, knitting cams, and knitting -yarn guide or guides of a rib-knitting machine, with a deflector operating on the inside of the machine and serving to displace from their normal position the stitches carried by one set of needles, a guide for laying a fleecing-yarn behind said deflected stitches and delivering it to needles. of the other set, a tying-yarn guide and means for causing said tying-yarnto engage with said fleecing-yarn and also with Wales of the ribbed fabric, substantially as specified.

7. The combination of the two sets of I needles, knitting-cams, and knitting-yarn guide or guides of a rib-knitting machine, witha stitch means for displacing'from their normal position the stitches carried by one set of needles, a guide for laying a fleecingyarn behind said deflected stitches and applying it to needles of the other set, means or operating the'latter needles to engage the fleecing-yarn, a tying-yarn guide and means for operating the needles so as to cause them to engage and draw loops of the tying-yarn and cast the loops of fleecing-yarn onto the same without casting the knitting-stitches carried by them, substantially as specified.- i

8. The combination of the two sets of needles, knitting cams and knitting yarn guide or guides of a rib-knitting machine, with a combined fleecing-yarn guide and deflector operating to displace from their normal position the stitches carried by one set of needles, lay a fieecin eyarn behind said d6,- llected stitches and the otherset, a tying-yarn guide and means for causing saidtying-yarn to engage with said fleecing-yarn and also with wales of the ribbed fabric, substantially as specified.

9. The combination of the two sets of" needles, knitting-cams, and knitting-yarn eliver it to needles of guide or guides of a rib-knitting machine, with a combined fleecing-yarn guide and defiector operating on the inside of the machine and servmg to'displace from their normal po sition the stitches carried by one set of needles, lay a fleecing-yarn behind said deflected stitches and deliver it-to' needles of the other set, a tying-yarn guide and means for causing said tying-yarn to engage with said fleecing-yarn and also with Wales of'the' ribbed fabric, substantiallyas specified.

10. The combination of the two sets of needles, knitting cams, and knitting yarn 'guide or guides of a rib-knitting machine,

with a combined fleecing-yarn guide and dellector operating to-displace from their nor mal position the stitches carried by one set of needles, lay a fleecing-yarn behind said defiected stitches and apply it to needles of. the other set, means for operating the latter needles to engage the fleecing-yarn, a tyingyarn guide and means for operating the needlesso as to cause them to engage said tying-yarn and cast the loops of fleecingyarn onto the same without casting the knitting-stitches, substantially as specified.

11. The combination 'of the two sets of needles, knitting cams, and knitting yarn guide or guides of a rib-knitting machine, with a combined fleecing-yarn guide and deflector located on the inside of the machine I and acting directly upon the stitches carried by one set of needles .to displace .the' same from their normal position, lay a fleecingyarn behind said deflected stitches and apply it to needles of'the other set, means for operating the latter needles to en age the fleecing arn, a tying-yarn guide an means for operating the needles so as to cause them to engage said tying-yarn and cast the loops of fleec ng-yarn onto the same withoutcasting the lmitting-stitches, substantially as-specilied. a

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT W: SCOTT. Witnesses:

WM. E. SHUPE,

Jo's. H. KLEIN, 

